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  1. kellys_eye

    Open reel tape deck transport

    You can do this in the Project Log section: https://www.electronicspoint.com/forums/project-log-discussion.172/
  2. kellys_eye

    Help needed with project

    You don't want to 'send a string of numbers to your keypad' - you want to send them to whatever your keypad is connected to. HOW is the keypad connected? Per button? X/Y grid (commonly), 4x3 grid, 4x4 grid? Pull up resistors or scanned? So... Nope....:D
  3. kellys_eye

    Converting astrocom ground cord for use on David Clarke headset

    Sorry, I don't live near enough.
  4. kellys_eye

    Guitar synth fails self test

    Their keenness to supply schematics is inversely proportional to the chances of you fixing it.
  5. kellys_eye

    DSP Radio - Change of Ferrite Rod to improve RF gain and signal stabililty

    The coil on the ferrite rod is part of the input tuning stage - changing the ferrite will change the properties (resonance) of the tuning circuits. Whether or not this 'helps' the radios performance depends on how well the coil/ferrite was constructed in the first place. Normal practice is to...
  6. kellys_eye

    Hello, can somebody help me with an240P

    You really think you can manage a project of this complexity? Your posts (so far) don't indicate the level of expertise and/or knowledge required to construct such a device. Build something less complicated to begin with - learn some of the principles and theories etc. What is the most...
  7. kellys_eye

    Resistor

    1.5Ω....
  8. kellys_eye

    Programmable Smilies

    ...well, as long as there's someone (else) to blame, the kids of today will be just fine..........
  9. kellys_eye

    Guitar synth fails self test

    Have you checked your leads?
  10. kellys_eye

    Guitar synth fails self test

    I get to at LEAST 45 IC's.......
  11. kellys_eye

    Guitar synth fails self test

    Test #3 relates to the MIDI functions - did you 'loop through' the MIDI in/out ports?
  12. kellys_eye

    Guitar synth fails self test

    This is the proper link: https://soundprogramming.net/guitar-synthesizers/roland/roland-gr-30/ Scroll down to the right part then you have to right-click and 'save-as' to get it. Else it returns you to the main page :rolleyes:
  13. kellys_eye

    Schematic diagram for DT-9205B Digital Multimeter

    There isn't one. What problem do you have? Post pictures of any faulty parts (insides).
  14. kellys_eye

    Guitar synth fails self test

    Let me guess........ hmmmmm.......... nope, my crystal ball fu is none existent tonight. It seems there's absolutely no way I can detect the make, the model, the schematic or the board layout no matter how I throw my Tarot cards down...... :rolleyes:
  15. kellys_eye

    Hello, can somebody help me with an240P

    To 'walk' someone through the construction of an FM superhet receiver is well beyond the scope of this forum and any individual's time - unless, of course, they are supremely selfless.... If this is your first radio construction project then it is 'too advanced' and I suggest you look at...
  16. kellys_eye

    What transmitter receiver setup is best for me, and how do i set them up?

    Bluetooth springs immediately to mind. But without knowing the data rate, sampling rate etc it's just a 'guess'.
  17. kellys_eye

    Programmable Smilies

    Given the propensity for kids :rolleyes: communicating by (almost) entirely emoticons these days :eek: is it any wonder the average IQ levels are dropping :D:p (ps - there's no emoticon for /sarc)
  18. kellys_eye

    Identify this continuously rotating part please

    'Not indexed' means it doesn't have a mechanical 'feedback' (felt as 'clicks') when you rotate it.
  19. kellys_eye

    Switching PSU drops 5v.

    Post clear pictures of the PCB without any interfering boxes/heatsinks in the way. Both sides.
  20. kellys_eye

    Can't identify a single chip from my circuit board. Need help.

    The chances of an internal program error causing a misfire is as good as zero - more so if it's intermittent. What make/model vehicle are you working on? Does the ECU drive the spark plugs directly? There is an ignition module (possibly one per cylinder) inbetween. Swap them around and see...
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